Strange (to me) error message in KMail

Debian Wheezy 7.8
Trinity R14.0.1
KMail 1.9.10
It is a new installation of both Trinity and KMail on a new computer.
Initially it worked fine and a pile of new messages downloaded. Now it won't
download and I get the error message:
'could not connect to host localhost'
I have run it from a terminal, and I get:
john@Harrier:~$ kmail
[TDE NM Backend ERROR]
[/tmp/buildd/tdelibs-trinity-14.0.1/tdecore/tdehw/networkbackends/network-manager/network-manager.cpp:1224]
org.freedesktop.DBus.Error.ServiceUnknown: The name
org.freedesktop.NetworkManager was not provided by any .service files
[TDE NM Backend ERROR]
[/tmp/buildd/tdelibs-trinity-14.0.1/tdecore/tdehw/networkbackends/network-manager/network-manager.cpp:1224]
org.freedesktop.DBus.Error.ServiceUnknown: The name
org.freedesktop.NetworkManager was not provided by any .service files
[TDE NM Backend ERROR]
[/tmp/buildd/tdelibs-trinity-14.0.1/tdecore/tdehw/networkbackends/network-manager/network-manager.cpp:1803]
org.freedesktop.DBus.Error.ServiceUnknown: The name
org.freedesktop.NetworkManager was not provided by any .service files
kmail: WARNING: Autosave
directory /home/john/.trinity/share/apps/kmail/autosave/cur not found!
john@Harrier:~$ WeaverThreadLogger: thread (ID: 1) suspended.
WeaverThreadLogger: thread (ID: 3) suspended.
WeaverThreadLogger: thread (ID: 4) suspended.
WeaverThreadLogger: thread (ID: 2) suspended.
Weaver dtor: destroying inventory.
WeaverThreadLogger: thread (ID: 1) destroyed.
WeaverThreadLogger: thread (ID: 2) destroyed.
WeaverThreadLogger: thread (ID: 3) destroyed.
WeaverThreadLogger: thread (ID: 4) destroyed.
Weaver dtor: done
^C
john@Harrier:~$
When I shut down KMail, the Konsole hung at <Weaver dtor: done>. I then did
^C to shut it down in the Konsole and shut the Konsole.
What do I do to get KMail working, or do I have to put this client back on
Icedove and Mbox. :-(
Thanks,
Lisi